Well, why I can't answer you, but in general you will need an anonymous company if you consider a transaction in regards of a take over of a competing business, could also be a website or other property / business activity where you are not interested that the other part is knowing who is buying.
To setup a anonymous company can be done in several ways, just depends on how anonymous you would like it to be.
For instant you can form a Cyprus company with noniminee shareholders and directors, doing so the beneficial owner won't need to sign any documents or agreements etc. on behalf of the company, the nominee director will do so.
For an additional layer of privacy protection and for some tax reason, many also start with an Offshore Holding company for instant in the
Seychelles which also is registered with full nominee services, now the
Seychelles company will be the shareholder and director of a new registered Cyprus company.
Both task are pretty simple and very common, just depends on the particular case.